Automatic finite element mesh generation for maxillary second premolar

被引:40
作者
Lin, CL
Chang, CH [1 ]
Cheng, CS
Wang, CH
Lee, HE
机构
[1] Natl Cheng Kung Univ, Inst Biomed Engn, Tainan 70101, Taiwan
[2] Kaohsiung Med Coll, Grad Inst Dent Sci, Kaohsiung, Taiwan
关键词
mesh generation; maxillary second premolar; finite element method;
D O I
10.1016/S0169-2607(99)00004-8
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Developing three dimensional finite element mesh models for irregular geometric objects requires a large amount of manual efforts, hence limiting the three dimensional approach for dental structure analyses. An automatic procedure which can be used to generate a three dimensional finite element mesh for the maxillary second premolar was developed in this study. Firstly, a embedded second premolar was sliced and scanned parallel to the occlusal surface. A self-developed image processing system was employed to detect the boundaries of different materials within each section. An automatic mesh generation program was used on these boundaries to create tetrahedral elements based on moving nodes of uniform cube approach. Six mesh models of the second premolar with different element sizes using linear and quadratic elements were analyzed. Strain energy and von Mises stresses were reviewed for convergence in the crown regions. (C) 1999 Elsevier Science Ireland Ltd. All rights reserved.
引用
收藏
页码:187 / 195
页数:9
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